void quisk_start_sound_pulseaudio(struct sound_dev **pCapture, struct sound_dev **pPlayback) {
int num_pa_devices = 0;
int i;
//sorted lists of local and remote devices
struct sound_dev *LocalPulseDevices[PA_LIST_SIZE] = {NULL};
struct sound_dev *RemotePulseDevices[PA_LIST_SIZE] = {NULL};
sort_devices(pCapture, LocalPulseDevices, RemotePulseDevices);
sort_devices(pPlayback, LocalPulseDevices, RemotePulseDevices);
if (!RemotePulseDevices[0] && !LocalPulseDevices[0]) {
if (quisk_sound_state.verbose_pulse)
printf("No pulseaudio devices to open!\n");
return; //nothing to open. No need to start the mainloop.
}
// Create a mainloop API
pa_ml = pa_threaded_mainloop_new();
pa_mlapi = pa_threaded_mainloop_get_api(pa_ml);
assert(pa_signal_init(pa_mlapi) == 0);
if (pa_threaded_mainloop_start(pa_ml) < 0) {
printf("pa_mainloop_run() failed.");
exit(1);
}
else
printf("Pulseaudio threaded mainloop started\n");
pa_threaded_mainloop_lock(pa_ml);
if (RemotePulseDevices[0]) { //we've got at least 1 remote device
pa_IQ_ctx = pa_context_new(pa_mlapi, "Quisk-remote");
if (pa_context_connect(pa_IQ_ctx, quisk_sound_state.IQ_server, 0, NULL) < 0)
printf("Failed to connect to remote Pulseaudio server\n");
pa_context_set_state_callback(pa_IQ_ctx, state_cb, RemotePulseDevices); //send a list of remote devices to open
}
if (LocalPulseDevices[0]) { //we've got at least 1 local device
pa_ctx = pa_context_new(pa_mlapi, "Quisk-local");
if (pa_context_connect(pa_ctx, NULL, 0, NULL) < 0)
printf("Failed to connect to local Pulseaudio server\n");
pa_context_set_state_callback(pa_ctx, state_cb, LocalPulseDevices);
}
pa_threaded_mainloop_unlock(pa_ml);
for(i=0; LocalPulseDevices[i]; i++) {
num_pa_devices++;
}
for(i=0; RemotePulseDevices[i]; i++) {
num_pa_devices++;
}
if (quisk_sound_state.verbose_pulse)
printf("Waiting for %d streams to start\n", num_pa_devices);
while (streams_ready < num_pa_devices); // wait for all the devices to open
if (quisk_sound_state.verbose_pulse)
printf("All streams started\n");
}
static BOOL tsmf_pulse_open_stream(TSMFPulseAudioDevice *pulse)
{
pa_stream_state_t state;
pa_buffer_attr buffer_attr = { 0 };
if(!pulse->context)
return FALSE;
DEBUG_TSMF("");
pa_threaded_mainloop_lock(pulse->mainloop);
pulse->stream = pa_stream_new(pulse->context, "freerdp",
&pulse->sample_spec, NULL);
if(!pulse->stream)
{
pa_threaded_mainloop_unlock(pulse->mainloop);
CLOG_ERR("pa_stream_new failed (%d)",
pa_context_errno(pulse->context));
return FALSE;
}
pa_stream_set_state_callback(pulse->stream,
tsmf_pulse_stream_state_callback, pulse);
pa_stream_set_write_callback(pulse->stream,
tsmf_pulse_stream_request_callback, pulse);
buffer_attr.maxlength = pa_usec_to_bytes(500000, &pulse->sample_spec);
buffer_attr.tlength = pa_usec_to_bytes(250000, &pulse->sample_spec);
buffer_attr.prebuf = (UINT32) -1;
buffer_attr.minreq = (UINT32) -1;
buffer_attr.fragsize = (UINT32) -1;
if(pa_stream_connect_playback(pulse->stream,
pulse->device[0] ? pulse->device : NULL, &buffer_attr,
PA_STREAM_ADJUST_LATENCY | PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE,
NULL, NULL) < 0)
{
pa_threaded_mainloop_unlock(pulse->mainloop);
CLOG_ERR("pa_stream_connect_playback failed (%d)",
pa_context_errno(pulse->context));
return FALSE;
}
for(;;)
{
state = pa_stream_get_state(pulse->stream);
if(state == PA_STREAM_READY)
break;
if(!PA_STREAM_IS_GOOD(state))
{
CLOG_ERR("bad stream state (%d)",
pa_context_errno(pulse->context));
break;
}
pa_threaded_mainloop_wait(pulse->mainloop);
}
pa_threaded_mainloop_unlock(pulse->mainloop);
if(state == PA_STREAM_READY)
{
DEBUG_TSMF("connected");
return TRUE;
}
else
{
tsmf_pulse_close_stream(pulse);
return FALSE;
}
}
/* Read samples from the PulseAudio device.
* Samples are converted to complex form based upon format, counted
* and returned via cSamples pointer.
* Returns the number of samples placed into cSamples
*/
int quisk_read_pulseaudio(struct sound_dev *dev, complex double *cSamples) {
int i, nSamples;
int read_frames; // A frame is a sample from each channel
const void * fbuffer;
pa_stream *s = dev->handle;
size_t read_bytes;
if (!dev)
return 0;
if (dev->cork_status) {
if (dev->read_frames != 0) {
WaitForPoll();
}
return 0;
}
// Note: Access to PulseAudio data from our sound thread requires locking the threaded mainloop.
if (dev->read_frames == 0) { // non-blocking: read available frames
pa_threaded_mainloop_lock(pa_ml);
read_frames = pa_stream_readable_size(s) / dev->num_channels / dev->sample_bytes;
if (read_frames == 0) {
pa_threaded_mainloop_unlock(pa_ml);
return 0;
}
dev->dev_latency = read_frames * dev->num_channels * 1000 / (dev->sample_rate / 1000);
}
else { // Blocking read for dev->read_frames total frames
WaitForPoll();
pa_threaded_mainloop_lock(pa_ml);
read_frames = pa_stream_readable_size(s) / dev->num_channels / dev->sample_bytes;
if (read_frames == 0) {
pa_threaded_mainloop_unlock(pa_ml);
return 0;
}
dev->dev_latency = read_frames * dev->num_channels * 1000 / (dev->sample_rate / 1000);
}
nSamples = 0;
while (nSamples < read_frames) { // read samples in chunks until we have enough samples
if (pa_stream_peek (s, &fbuffer, &read_bytes) < 0) {
printf("Failure of pa_stream_peek in quisk_read_pulseaudio\n");
pa_threaded_mainloop_unlock(pa_ml);
return nSamples;
}
if (fbuffer == NULL && read_bytes == 0) { // buffer is empty
break;
}
if (fbuffer == NULL) { // there is a hole in the buffer
pa_stream_drop(s);
continue;
}
if (nSamples * dev->num_channels * dev->sample_bytes + read_bytes >= SAMP_BUFFER_SIZE) {
if (quisk_sound_state.verbose_pulse)
printf("buffer full on %s\n", dev->name);
pa_stream_drop(s); // limit read request to buffer size
break;
}
// Convert sampled data to complex data. dev->num_channels must be 2.
if (dev->sample_bytes == 4) { //float32
float fi, fq;
for( i = 0; i < read_bytes; i += (dev->num_channels * 4)) {
memcpy(&fi, fbuffer + i + (dev->channel_I * 4), 4);
memcpy(&fq, fbuffer + i + (dev->channel_Q * 4), 4);
if (fi >= 1.0 || fi <= -1.0)
dev->overrange++;
if (fq >= 1.0 || fq <= -1.0)
dev->overrange++;
cSamples[nSamples++] = (fi + I * fq) * CLIP32;
}
}
else if (dev->sample_bytes == 2) { //16bit integer little-endian
int16_t si, sq;
for( i = 0; i < read_bytes; i += (dev->num_channels * 2)) {
memcpy(&si, fbuffer + i + (dev->channel_I * 2), 2);
memcpy(&sq, fbuffer + i + (dev->channel_Q * 2), 2);
if (si >= CLIP16 || si <= -CLIP16)
dev->overrange++;
if (sq >= CLIP16 || sq <= -CLIP16)
dev->overrange++;
int ii = si << 16;
int qq = sq << 16;
cSamples[nSamples++] = ii + I * qq;
}
}
else {
printf("Unknown sample size for %s", dev->name);
}
pa_stream_drop(s);
}
pa_threaded_mainloop_unlock(pa_ml);
// DC removal; R.G. Lyons page 553
complex double c;
for (i = 0; i < nSamples; i++) {
c = cSamples[i] + dev->dc_remove * 0.95;
cSamples[i] = c - dev->dc_remove;
dev->dc_remove = c;
}
return nSamples;
}
/*!
* \Write outgoing samples directly to pulseaudio server.
* \param playdev Input. Device to which to play the samples.
* \param nSamples Input. Number of samples to play.
* \param cSamples Input. Sample buffer to play from.
* \param report_latency Input. 1 to update \c quisk_sound_state.latencyPlay, 0 otherwise.
* \param volume Input. Ratio in [0,1] by which to scale the played samples.
*/
void quisk_play_pulseaudio(struct sound_dev *dev, int nSamples, complex double *cSamples,
int report_latency, double volume) {
pa_stream *s = dev->handle;
int i=0, n=0;
void *fbuffer;
int fbuffer_bytes = 0;
if( !dev || nSamples <= 0)
return;
if (dev->cork_status)
return;
if (report_latency) { // Report the latency, if requested.
pa_operation *o;
pa_threaded_mainloop_lock(pa_ml);
if (!(o = pa_stream_update_timing_info(s, stream_timing_callback, dev))) {
printf("pa_stream_update_timing(): %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
}
else {
while (pa_operation_get_state(o) == PA_OPERATION_RUNNING)
pa_threaded_mainloop_wait(pa_ml);
pa_operation_unref(o);
}
pa_threaded_mainloop_unlock(pa_ml);
}
fbuffer = pa_xmalloc(nSamples * dev->num_channels * dev->sample_bytes);
// Convert from complex data to framebuffer
if (dev->sample_bytes == 4) {
float fi=0.f, fq=0.f;
for(i = 0, n = 0; n < nSamples; i += (dev->num_channels * 4), ++n) {
fi = (volume * creal(cSamples[n])) / CLIP32;
fq = (volume * cimag(cSamples[n])) / CLIP32;
memcpy(fbuffer + i + (dev->channel_I * 4), &fi, 4);
memcpy(fbuffer + i + (dev->channel_Q * 4), &fq, 4);
}
}
else if (dev->sample_bytes == 2) {
int ii, qq;
for(i = 0, n = 0; n < nSamples; i += (dev->num_channels * 2), ++n) {
ii = (int)(volume * creal(cSamples[n]) / 65536);
qq = (int)(volume * cimag(cSamples[n]) / 65536);
memcpy(fbuffer + i + (dev->channel_I * 2), &ii, 2);
memcpy(fbuffer + i + (dev->channel_Q * 2), &qq, 2);
}
}
else {
printf("Unknown sample size for %s", dev->name);
exit(1);
}
fbuffer_bytes = nSamples * dev->num_channels * dev->sample_bytes;
pa_threaded_mainloop_lock(pa_ml);
size_t writable = pa_stream_writable_size(s);
if (writable > 0) {
if ( writable > 1024*1000 ) //sanity check to prevent pa_xmalloc from crashing on monitor streams
writable = 1024*1000;
if (fbuffer_bytes > writable) {
if (quisk_sound_state.verbose_pulse)
printf("Truncating write by %u bytes\n", fbuffer_bytes - (int)writable);
fbuffer_bytes = writable;
}
pa_stream_write(dev->handle, fbuffer, (size_t)fbuffer_bytes, NULL, 0, PA_SEEK_RELATIVE);
//printf("wrote %d to %s\n", writable, dev->name);
}
else {
if (quisk_sound_state.verbose_pulse)
printf("Can't write to stream %s. Dropping %d bytes\n", dev->name, fbuffer_bytes);
}
pa_threaded_mainloop_unlock(pa_ml);
pa_xfree(fbuffer);
fbuffer=NULL;
}
static int drvHostPulseAudioOpen(bool fIn, const char *pszName,
pa_sample_spec *pSampleSpec, pa_buffer_attr *pBufAttr,
pa_stream **ppStream)
{
AssertPtrReturn(pszName, VERR_INVALID_POINTER);
AssertPtrReturn(pSampleSpec, VERR_INVALID_POINTER);
AssertPtrReturn(pBufAttr, VERR_INVALID_POINTER);
AssertPtrReturn(ppStream, VERR_INVALID_POINTER);
if (!pa_sample_spec_valid(pSampleSpec))
{
LogRel(("PulseAudio: Unsupported sample specification for stream \"%s\"\n",
pszName));
return VERR_NOT_SUPPORTED;
}
int rc = VINF_SUCCESS;
pa_stream *pStream = NULL;
uint32_t flags = PA_STREAM_NOFLAGS;
LogFunc(("Opening \"%s\", rate=%dHz, channels=%d, format=%s\n",
pszName, pSampleSpec->rate, pSampleSpec->channels,
pa_sample_format_to_string(pSampleSpec->format)));
pa_threaded_mainloop_lock(g_pMainLoop);
do
{
if (!(pStream = pa_stream_new(g_pContext, pszName, pSampleSpec,
NULL /* pa_channel_map */)))
{
LogRel(("PulseAudio: Could not create stream \"%s\"\n", pszName));
rc = VERR_NO_MEMORY;
break;
}
pa_stream_set_state_callback(pStream, drvHostPulseAudioCbStreamState, NULL);
#if PA_API_VERSION >= 12
/* XXX */
flags |= PA_STREAM_ADJUST_LATENCY;
#endif
#if 0
/* Not applicable as we don't use pa_stream_get_latency() and pa_stream_get_time(). */
flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
#endif
/* No input/output right away after the stream was started. */
flags |= PA_STREAM_START_CORKED;
if (fIn)
{
LogFunc(("Input stream attributes: maxlength=%d fragsize=%d\n",
pBufAttr->maxlength, pBufAttr->fragsize));
if (pa_stream_connect_record(pStream, /*dev=*/NULL, pBufAttr, (pa_stream_flags_t)flags) < 0)
{
LogRel(("PulseAudio: Could not connect input stream \"%s\": %s\n",
pszName, pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
}
else
{
LogFunc(("Output buffer attributes: maxlength=%d tlength=%d prebuf=%d minreq=%d\n",
pBufAttr->maxlength, pBufAttr->tlength, pBufAttr->prebuf, pBufAttr->minreq));
if (pa_stream_connect_playback(pStream, /*dev=*/NULL, pBufAttr, (pa_stream_flags_t)flags,
/*cvolume=*/NULL, /*sync_stream=*/NULL) < 0)
{
LogRel(("PulseAudio: Could not connect playback stream \"%s\": %s\n",
pszName, pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
}
/* Wait until the stream is ready. */
for (;;)
{
if (!g_fAbortMainLoop)
pa_threaded_mainloop_wait(g_pMainLoop);
g_fAbortMainLoop = false;
pa_stream_state_t sstate = pa_stream_get_state(pStream);
if (sstate == PA_STREAM_READY)
break;
else if ( sstate == PA_STREAM_FAILED
|| sstate == PA_STREAM_TERMINATED)
{
LogRel(("PulseAudio: Failed to initialize stream \"%s\" (state %ld)\n",
pszName, sstate));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
}
if (RT_FAILURE(rc))
break;
const pa_buffer_attr *pBufAttrObtained = pa_stream_get_buffer_attr(pStream);
AssertPtr(pBufAttrObtained);
memcpy(pBufAttr, pBufAttrObtained, sizeof(pa_buffer_attr));
if (fIn)
LogFunc(("Obtained record buffer attributes: maxlength=%RU32, fragsize=%RU32\n",
pBufAttr->maxlength, pBufAttr->fragsize));
else
LogFunc(("Obtained playback buffer attributes: maxlength=%d, tlength=%d, prebuf=%d, minreq=%d\n",
pBufAttr->maxlength, pBufAttr->tlength, pBufAttr->prebuf, pBufAttr->minreq));
}
while (0);
if ( RT_FAILURE(rc)
&& pStream)
pa_stream_disconnect(pStream);
pa_threaded_mainloop_unlock(g_pMainLoop);
if (RT_FAILURE(rc))
{
if (pStream)
pa_stream_unref(pStream);
}
else
*ppStream = pStream;
LogFlowFuncLeaveRC(rc);
return rc;
}
static DECLCALLBACK(int) drvHostPulseAudioInit(PPDMIHOSTAUDIO pInterface)
{
NOREF(pInterface);
LogFlowFuncEnter();
int rc = audioLoadPulseLib();
if (RT_FAILURE(rc))
{
LogRel(("PulseAudio: Failed to load the PulseAudio shared library! Error %Rrc\n", rc));
return rc;
}
bool fLocked = false;
do
{
if (!(g_pMainLoop = pa_threaded_mainloop_new()))
{
LogRel(("PulseAudio: Failed to allocate main loop: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_NO_MEMORY;
break;
}
if (!(g_pContext = pa_context_new(pa_threaded_mainloop_get_api(g_pMainLoop), "VirtualBox")))
{
LogRel(("PulseAudio: Failed to allocate context: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_NO_MEMORY;
break;
}
if (pa_threaded_mainloop_start(g_pMainLoop) < 0)
{
LogRel(("PulseAudio: Failed to start threaded mainloop: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
g_fAbortMainLoop = false;
pa_context_set_state_callback(g_pContext, drvHostPulseAudioCbCtxState, NULL);
pa_threaded_mainloop_lock(g_pMainLoop);
fLocked = true;
if (pa_context_connect(g_pContext, NULL /* pszServer */,
PA_CONTEXT_NOFLAGS, NULL) < 0)
{
LogRel(("PulseAudio: Failed to connect to server: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
/* Wait until the g_pContext is ready */
for (;;)
{
if (!g_fAbortMainLoop)
pa_threaded_mainloop_wait(g_pMainLoop);
g_fAbortMainLoop = false;
pa_context_state_t cstate = pa_context_get_state(g_pContext);
if (cstate == PA_CONTEXT_READY)
break;
else if ( cstate == PA_CONTEXT_TERMINATED
|| cstate == PA_CONTEXT_FAILED)
{
LogRel(("PulseAudio: Failed to initialize context (state %d)\n", cstate));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
}
}
while (0);
if (fLocked)
pa_threaded_mainloop_unlock(g_pMainLoop);
if (RT_FAILURE(rc))
{
if (g_pMainLoop)
pa_threaded_mainloop_stop(g_pMainLoop);
if (g_pContext)
{
pa_context_disconnect(g_pContext);
pa_context_unref(g_pContext);
g_pContext = NULL;
}
if (g_pMainLoop)
{
pa_threaded_mainloop_free(g_pMainLoop);
g_pMainLoop = NULL;
}
}
LogFlowFuncLeaveRC(rc);
return rc;
}
/*****************************************************************************
* Open: open the audio device
*****************************************************************************/
static int Open ( vlc_object_t *p_this )
{
aout_instance_t *p_aout = (aout_instance_t *)p_this;
struct aout_sys_t * p_sys;
struct pa_sample_spec ss;
const struct pa_buffer_attr *buffer_attr;
struct pa_buffer_attr a;
struct pa_channel_map map;
/* Allocate structures */
p_aout->output.p_sys = p_sys = calloc( 1, sizeof( aout_sys_t ) );
if( p_sys == NULL )
return VLC_ENOMEM;
PULSE_DEBUG( "Pulse start initialization");
ss.channels = aout_FormatNbChannels( &p_aout->output.output ); /* Get the input stream channel count */
/* Setup the pulse audio stream based on the input stream count */
switch(ss.channels)
{
case 8:
p_aout->output.output.i_physical_channels
= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
| AOUT_CHAN_MIDDLELEFT | AOUT_CHAN_MIDDLERIGHT
| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
| AOUT_CHAN_LFE;
break;
case 6:
p_aout->output.output.i_physical_channels
= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
| AOUT_CHAN_LFE;
break;
case 4:
p_aout->output.output.i_physical_channels
= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
break;
case 2:
p_aout->output.output.i_physical_channels
= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
break;
case 1:
p_aout->output.output.i_physical_channels = AOUT_CHAN_CENTER;
break;
default:
msg_Err(p_aout,"Invalid number of channels");
goto fail;
}
/* Add a quick command line info message */
msg_Dbg(p_aout, "%d audio channels", ss.channels);
ss.rate = p_aout->output.output.i_rate;
if (HAVE_FPU)
{
ss.format = PA_SAMPLE_FLOAT32NE;
p_aout->output.output.i_format = VLC_CODEC_FL32;
}
else
{
ss.format = PA_SAMPLE_S16NE;
p_aout->output.output.i_format = VLC_CODEC_S16N;
}
if (!pa_sample_spec_valid(&ss)) {
msg_Err(p_aout,"Invalid sample spec");
goto fail;
}
/* Reduce overall latency to 200mS to reduce audible clicks
* Also pulse minreq and internal buffers are now 20mS which reduces resampling
*/
a.tlength = pa_bytes_per_second(&ss)/5;
a.maxlength = a.tlength * 2;
a.prebuf = a.tlength / 2;
a.minreq = a.tlength / 10;
/* Buffer size is 20mS */
p_sys->buffer_size = a.minreq;
/* Initialise the speaker map setup above */
pa_channel_map_init_auto(&map, ss.channels, PA_CHANNEL_MAP_ALSA);
if (!(p_sys->mainloop = pa_threaded_mainloop_new())) {
msg_Err(p_aout, "Failed to allocate main loop");
goto fail;
}
if (!(p_sys->context = pa_context_new(pa_threaded_mainloop_get_api(p_sys->mainloop), _( PULSE_CLIENT_NAME )))) {
msg_Err(p_aout, "Failed to allocate context");
goto fail;
}
pa_context_set_state_callback(p_sys->context, context_state_cb, p_aout);
PULSE_DEBUG( "Pulse before context connect");
if (pa_context_connect(p_sys->context, NULL, 0, NULL) < 0) {
msg_Err(p_aout, "Failed to connect to server: %s", pa_strerror(pa_context_errno(p_sys->context)));
goto fail;
}
PULSE_DEBUG( "Pulse after context connect");
pa_threaded_mainloop_lock(p_sys->mainloop);
if (pa_threaded_mainloop_start(p_sys->mainloop) < 0) {
msg_Err(p_aout, "Failed to start main loop");
goto unlock_and_fail;
}
msg_Dbg(p_aout, "Pulse mainloop started");
/* Wait until the context is ready */
pa_threaded_mainloop_wait(p_sys->mainloop);
if (pa_context_get_state(p_sys->context) != PA_CONTEXT_READY) {
msg_Dbg(p_aout, "Failed to connect to server: %s", pa_strerror(pa_context_errno(p_sys->context)));
goto unlock_and_fail;
}
if (!(p_sys->stream = pa_stream_new(p_sys->context, "audio stream", &ss, &map))) {
msg_Err(p_aout, "Failed to create stream: %s", pa_strerror(pa_context_errno(p_sys->context)));
goto unlock_and_fail;
}
PULSE_DEBUG( "Pulse after new stream");
pa_stream_set_state_callback(p_sys->stream, stream_state_cb, p_aout);
pa_stream_set_write_callback(p_sys->stream, stream_request_cb, p_aout);
pa_stream_set_latency_update_callback(p_sys->stream, stream_latency_update_cb, p_aout);
if (pa_stream_connect_playback(p_sys->stream, NULL, &a, PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE|PA_STREAM_ADJUST_LATENCY, NULL, NULL) < 0) {
msg_Err(p_aout, "Failed to connect stream: %s", pa_strerror(pa_context_errno(p_sys->context)));
goto unlock_and_fail;
}
PULSE_DEBUG("Pulse stream connect");
/* Wait until the stream is ready */
pa_threaded_mainloop_wait(p_sys->mainloop);
msg_Dbg(p_aout,"Pulse stream connected");
if (pa_stream_get_state(p_sys->stream) != PA_STREAM_READY) {
msg_Err(p_aout, "Failed to connect to server: %s", pa_strerror(pa_context_errno(p_sys->context)));
goto unlock_and_fail;
}
PULSE_DEBUG("Pulse after stream get status");
pa_threaded_mainloop_unlock(p_sys->mainloop);
buffer_attr = pa_stream_get_buffer_attr(p_sys->stream);
p_aout->output.i_nb_samples = buffer_attr->minreq / pa_frame_size(&ss);
p_aout->output.pf_play = Play;
aout_VolumeSoftInit(p_aout);
msg_Dbg(p_aout, "Pulse initialized successfully");
{
char cmt[PA_CHANNEL_MAP_SNPRINT_MAX], sst[PA_SAMPLE_SPEC_SNPRINT_MAX];
msg_Dbg(p_aout, "Buffer metrics: maxlength=%u, tlength=%u, prebuf=%u, minreq=%u", buffer_attr->maxlength, buffer_attr->tlength, buffer_attr->prebuf, buffer_attr->minreq);
msg_Dbg(p_aout, "Using sample spec '%s', channel map '%s'.",
pa_sample_spec_snprint(sst, sizeof(sst), pa_stream_get_sample_spec(p_sys->stream)),
pa_channel_map_snprint(cmt, sizeof(cmt), pa_stream_get_channel_map(p_sys->stream)));
msg_Dbg(p_aout, "Connected to device %s (%u, %ssuspended).",
pa_stream_get_device_name(p_sys->stream),
pa_stream_get_device_index(p_sys->stream),
pa_stream_is_suspended(p_sys->stream) ? "" : "not ");
}
return VLC_SUCCESS;
unlock_and_fail:
msg_Dbg(p_aout, "Pulse initialization unlock and fail");
if (p_sys->mainloop)
pa_threaded_mainloop_unlock(p_sys->mainloop);
fail:
msg_Dbg(p_aout, "Pulse initialization failed");
uninit(p_aout);
return VLC_EGENERIC;
}
static int init(int rate_hz, int channels, int format, int flags) {
struct pa_sample_spec ss;
struct pa_channel_map map;
const struct format_map_s *fmt_map;
char *devarg = NULL;
char *host = NULL;
char *sink = NULL;
char *version = pa_get_library_version();
if (ao_subdevice) {
devarg = strdup(ao_subdevice);
sink = strchr(devarg, ':');
if (sink) *sink++ = 0;
if (devarg[0]) host = devarg;
}
broken_pause = 0;
// not sure which versions are affected, assume 0.9.11* to 0.9.14*
// known bad: 0.9.14, 0.9.13
// known good: 0.9.9, 0.9.10, 0.9.15
// to test: pause, wait ca. 5 seconds framestep and see if MPlayer hangs somewhen
if (strncmp(version, "0.9.1", 5) == 0 && version[5] >= '1' && version[5] <= '4') {
mp_msg(MSGT_AO, MSGL_WARN, "[pulse] working around probably broken pause functionality,\n"
" see http://www.pulseaudio.org/ticket/440\n");
broken_pause = 1;
}
ss.channels = channels;
ss.rate = rate_hz;
ao_data.samplerate = rate_hz;
ao_data.channels = channels;
fmt_map = format_maps;
while (fmt_map->mp_format != format) {
if (fmt_map->mp_format == AF_FORMAT_UNKNOWN) {
mp_msg(MSGT_AO, MSGL_V, "AO: [pulse] Unsupported format, using default\n");
fmt_map = format_maps;
break;
}
fmt_map++;
}
ao_data.format = fmt_map->mp_format;
ss.format = fmt_map->pa_format;
if (!pa_sample_spec_valid(&ss)) {
mp_msg(MSGT_AO, MSGL_ERR, "AO: [pulse] Invalid sample spec\n");
goto fail;
}
pa_channel_map_init_auto(&map, ss.channels, PA_CHANNEL_MAP_ALSA);
ao_data.bps = pa_bytes_per_second(&ss);
pa_cvolume_reset(&volume, ss.channels);
if (!(mainloop = pa_threaded_mainloop_new())) {
mp_msg(MSGT_AO, MSGL_ERR, "AO: [pulse] Failed to allocate main loop\n");
goto fail;
}
if (!(context = pa_context_new(pa_threaded_mainloop_get_api(mainloop), PULSE_CLIENT_NAME))) {
mp_msg(MSGT_AO, MSGL_ERR, "AO: [pulse] Failed to allocate context\n");
goto fail;
}
pa_context_set_state_callback(context, context_state_cb, NULL);
if (pa_context_connect(context, host, 0, NULL) < 0)
goto fail;
pa_threaded_mainloop_lock(mainloop);
if (pa_threaded_mainloop_start(mainloop) < 0)
goto unlock_and_fail;
/* Wait until the context is ready */
pa_threaded_mainloop_wait(mainloop);
if (pa_context_get_state(context) != PA_CONTEXT_READY)
goto unlock_and_fail;
if (!(stream = pa_stream_new(context, "audio stream", &ss, &map)))
goto unlock_and_fail;
pa_stream_set_state_callback(stream, stream_state_cb, NULL);
pa_stream_set_write_callback(stream, stream_request_cb, NULL);
pa_stream_set_latency_update_callback(stream, stream_latency_update_cb, NULL);
if (pa_stream_connect_playback(stream, sink, NULL, PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE, &volume, NULL) < 0)
goto unlock_and_fail;
/* Wait until the stream is ready */
pa_threaded_mainloop_wait(mainloop);
if (pa_stream_get_state(stream) != PA_STREAM_READY)
goto unlock_and_fail;
pa_threaded_mainloop_unlock(mainloop);
free(devarg);
return 1;
unlock_and_fail:
if (mainloop)
pa_threaded_mainloop_unlock(mainloop);
fail:
if (context)
GENERIC_ERR_MSG(context, "Init failed");
free(devarg);
uninit(1);
return 0;
}
pa_simple* pa_simple_new_proplist(
const char *server,
const char *name,
pa_stream_direction_t dir,
const char *dev,
const char *stream_name,
const pa_sample_spec *ss,
const pa_channel_map *map,
const pa_buffer_attr *attr,
pa_proplist *proplist,
int *rerror) {
pa_simple *p;
int error = PA_ERR_INTERNAL, r;
CHECK_VALIDITY_RETURN_ANY(rerror, !server || *server, PA_ERR_INVALID, NULL);
CHECK_VALIDITY_RETURN_ANY(rerror, dir == PA_STREAM_PLAYBACK || dir == PA_STREAM_RECORD, PA_ERR_INVALID, NULL);
CHECK_VALIDITY_RETURN_ANY(rerror, !dev || *dev, PA_ERR_INVALID, NULL);
CHECK_VALIDITY_RETURN_ANY(rerror, ss && pa_sample_spec_valid(ss), PA_ERR_INVALID, NULL);
CHECK_VALIDITY_RETURN_ANY(rerror, !map || (pa_channel_map_valid(map) && map->channels == ss->channels), PA_ERR_INVALID, NULL)
p = pa_xnew0(pa_simple, 1);
p->direction = dir;
if (!(p->mainloop = pa_threaded_mainloop_new()))
goto fail;
if (!(p->context = pa_context_new(pa_threaded_mainloop_get_api(p->mainloop), name)))
goto fail;
pa_context_set_state_callback(p->context, context_state_cb, p);
if (pa_context_connect(p->context, server, 0, NULL) < 0) {
error = pa_context_errno(p->context);
goto fail;
}
pa_threaded_mainloop_lock(p->mainloop);
if (pa_threaded_mainloop_start(p->mainloop) < 0)
goto unlock_and_fail;
for (;;) {
pa_context_state_t state;
state = pa_context_get_state(p->context);
if (state == PA_CONTEXT_READY)
break;
if (!PA_CONTEXT_IS_GOOD(state)) {
error = pa_context_errno(p->context);
goto unlock_and_fail;
}
/* Wait until the context is ready */
pa_threaded_mainloop_wait(p->mainloop);
}
if (!(p->stream = pa_stream_new_with_proplist(p->context, stream_name, ss, map, proplist))) {
error = pa_context_errno(p->context);
goto unlock_and_fail;
}
pa_stream_set_state_callback(p->stream, stream_state_cb, p);
pa_stream_set_read_callback(p->stream, stream_request_cb, p);
pa_stream_set_write_callback(p->stream, stream_request_cb, p);
pa_stream_set_latency_update_callback(p->stream, stream_latency_update_cb, p);
if (dir == PA_STREAM_PLAYBACK)
r = pa_stream_connect_playback(p->stream, dev, attr,
PA_STREAM_INTERPOLATE_TIMING
|PA_STREAM_ADJUST_LATENCY
|PA_STREAM_AUTO_TIMING_UPDATE, NULL, NULL);
else
r = pa_stream_connect_record(p->stream, dev, attr,
PA_STREAM_INTERPOLATE_TIMING
|PA_STREAM_ADJUST_LATENCY
|PA_STREAM_AUTO_TIMING_UPDATE
|PA_STREAM_START_CORKED);
if (r < 0) {
error = pa_context_errno(p->context);
goto unlock_and_fail;
}
for (;;) {
pa_stream_state_t state;
state = pa_stream_get_state(p->stream);
if (state == PA_STREAM_READY)
break;
if (!PA_STREAM_IS_GOOD(state)) {
error = pa_context_errno(p->context);
goto unlock_and_fail;
}
/* Wait until the stream is ready */
pa_threaded_mainloop_wait(p->mainloop);
}
pa_threaded_mainloop_unlock(p->mainloop);
return p;
unlock_and_fail:
pa_threaded_mainloop_unlock(p->mainloop);
fail:
if (rerror)
*rerror = error;
pa_simple_free(p);
return NULL;
}
static void audin_pulse_open(IAudinDevice* device, AudinReceive receive, void* user_data)
{
pa_stream_state_t state;
pa_buffer_attr buffer_attr = { 0 };
AudinPulseDevice* pulse = (AudinPulseDevice*) device;
if (!pulse->context)
return;
if (!pulse->sample_spec.rate || pulse->stream)
return;
DEBUG_DVC("");
pulse->receive = receive;
pulse->user_data = user_data;
pa_threaded_mainloop_lock(pulse->mainloop);
pulse->stream = pa_stream_new(pulse->context, "freerdp_audin",
&pulse->sample_spec, NULL);
if (!pulse->stream)
{
pa_threaded_mainloop_unlock(pulse->mainloop);
DEBUG_DVC("pa_stream_new failed (%d)",
pa_context_errno(pulse->context));
return;
}
pulse->bytes_per_frame = pa_frame_size(&pulse->sample_spec);
pa_stream_set_state_callback(pulse->stream,
audin_pulse_stream_state_callback, pulse);
pa_stream_set_read_callback(pulse->stream,
audin_pulse_stream_request_callback, pulse);
buffer_attr.maxlength = (uint32_t) -1;
buffer_attr.tlength = (uint32_t) -1;
buffer_attr.prebuf = (uint32_t) -1;
buffer_attr.minreq = (uint32_t) -1;
/* 500ms latency */
buffer_attr.fragsize = pa_usec_to_bytes(500000, &pulse->sample_spec);
if (pa_stream_connect_record(pulse->stream,
pulse->device_name[0] ? pulse->device_name : NULL,
&buffer_attr, PA_STREAM_ADJUST_LATENCY) < 0)
{
pa_threaded_mainloop_unlock(pulse->mainloop);
DEBUG_WARN("pa_stream_connect_playback failed (%d)",
pa_context_errno(pulse->context));
return;
}
for (;;)
{
state = pa_stream_get_state(pulse->stream);
if (state == PA_STREAM_READY)
break;
if (!PA_STREAM_IS_GOOD(state))
{
DEBUG_WARN("bad stream state (%d)",
pa_context_errno(pulse->context));
break;
}
pa_threaded_mainloop_wait(pulse->mainloop);
}
pa_threaded_mainloop_unlock(pulse->mainloop);
if (state == PA_STREAM_READY)
{
memset(&pulse->adpcm, 0, sizeof(ADPCM));
pulse->buffer = xzalloc(pulse->bytes_per_frame * pulse->frames_per_packet);
pulse->buffer_frames = 0;
DEBUG_DVC("connected");
}
else
{
audin_pulse_close(device);
}
}
int PulseAudio_init(output_PulseAudio *self, PyObject *args, PyObject *kwds)
{
int sample_rate;
int channels;
int bits_per_sample;
char *stream_name;
pa_sample_spec sample_spec;
self->mainloop = NULL;
self->mainloop_api = NULL;
self->context = NULL;
self->stream = NULL;
if (!PyArg_ParseTuple(args, "iiis",
&sample_rate,
&channels,
&bits_per_sample,
&stream_name))
return -1;
/*sanity check output parameters*/
if (sample_rate > 0) {
sample_spec.rate = sample_rate;
} else {
PyErr_SetString(
PyExc_ValueError, "sample rate must be a postive value");
return -1;
}
if (channels > 0) {
sample_spec.channels = channels;
} else {
PyErr_SetString(
PyExc_ValueError, "channels must be a positive value");
return -1;
}
/*use .wav-style sample format*/
switch (bits_per_sample) {
case 8:
sample_spec.format = PA_SAMPLE_U8;
break;
case 16:
sample_spec.format = PA_SAMPLE_S16LE;
break;
case 24:
sample_spec.format = PA_SAMPLE_S24LE;
break;
default:
PyErr_SetString(
PyExc_ValueError, "bits-per-sample must be 8, 16 or 24");
return -1;
}
/*initialize threaded mainloop*/
if ((self->mainloop = pa_threaded_mainloop_new()) == NULL) {
PyErr_SetString(
PyExc_ValueError, "unable to get new mainloop");
return -1;
}
/*get abstract API from threaded mainloop*/
if ((self->mainloop_api =
pa_threaded_mainloop_get_api(self->mainloop)) == NULL) {
PyErr_SetString(
PyExc_ValueError, "unable to get mainloop API");
return -1;
}
/*create new connection context*/
if ((self->context = pa_context_new(self->mainloop_api,
stream_name)) == NULL) {
PyErr_SetString(
PyExc_ValueError, "unable to create PulseAudio connection context");
return -1;
}
/*setup context change callback*/
pa_context_set_state_callback(
self->context,
(pa_context_notify_cb_t)context_state_callback,
self->mainloop);
/*connect the context to default server*/
if (pa_context_connect(self->context, NULL, 0, NULL) < 0) {
PyErr_SetString(
PyExc_ValueError, "unable to connect context");
return -1;
}
pa_threaded_mainloop_lock(self->mainloop);
if (pa_threaded_mainloop_start(self->mainloop)) {
PyErr_SetString(
PyExc_ValueError, "unable to start mainloop thread");
goto error;
}
do {
pa_context_state_t state = pa_context_get_state(self->context);
if (state == PA_CONTEXT_READY) {
break;
} else if ((state == PA_CONTEXT_FAILED) ||
(state == PA_CONTEXT_TERMINATED)) {
PyErr_SetString(
PyExc_ValueError, "failed to start main loop");
goto error;
} else {
pa_threaded_mainloop_wait(self->mainloop);
}
} while (1);
/*create new connection stream*/
if ((self->stream = pa_stream_new(self->context,
stream_name,
&sample_spec,
NULL)) == NULL) {
PyErr_SetString(
PyExc_ValueError, "unable to create PulseAudio connection stream");
goto error;
}
/*setup stream state change callback*/
pa_stream_set_state_callback(
self->stream,
(pa_stream_notify_cb_t)stream_state_callback,
self->mainloop);
/*setup stream write callback*/
pa_stream_set_write_callback(
self->stream,
(pa_stream_request_cb_t)write_stream_callback,
self->mainloop);
/*perform connection to PulseAudio server's default output stream*/
if (pa_stream_connect_playback(
self->stream,
NULL, /*device*/
NULL, /*buffering attributes*/
PA_STREAM_ADJUST_LATENCY |
PA_STREAM_AUTO_TIMING_UPDATE |
PA_STREAM_INTERPOLATE_TIMING, /*flags*/
NULL, /*volume*/
NULL /*sync stream*/) < 0) {
PyErr_SetString(
PyExc_ValueError, "unable to connect for PulseAudio playback");
goto error;
}
do {
pa_stream_state_t state = pa_stream_get_state(self->stream);
if (state == PA_STREAM_READY) {
break;
} else if ((state == PA_STREAM_FAILED) ||
(state == PA_STREAM_TERMINATED)) {
PyErr_SetString(PyExc_ValueError, "failed to connect stream");
goto error;
} else {
pa_threaded_mainloop_wait(self->mainloop);
}
} while (1);
pa_threaded_mainloop_unlock(self->mainloop);
return 0;
error:
pa_threaded_mainloop_unlock(self->mainloop);
return -1;
}
